High-precision stainless steel flange plate

Abstract

The utility model discloses a high-precision stainless steel flange plate, which relates to the technical field of flange plates, and comprises a flange plate main body, a fastening mechanism is arranged on the outer side of the flange plate main body, the fastening mechanism comprises an external thread sleeve, and the external thread sleeve is fixedly connected to one side of the outside of the flange plate main body. The outer side of the outer threaded sleeve is in threaded connection with an inner threaded ring, the outer side of the outer threaded sleeve is sleeved with a connecting ring, the connecting ring is rotationally connected with the inner threaded ring, the outer side of the connecting ring is fixedly connected with rotating blocks in a circumferential array mode, and the interiors of the rotating blocks are rotationally connected with L-shaped positioning rods. According to the high-precision stainless steel flange plate disclosed by the utility model, through the arrangement of the fastening mechanism, compared with a single bolt for connection, the flange plates can be tightly attached to one another, stable connection is formed, the precision is higher, the leakage condition is avoided, the structure is simple, and the practicability is higher.

Description

TECHNICAL FIELD

[0001] The utility model relates to flange disc technical field especially, it relates to a high accuracy stainless steel flange disc. BACKGROUND

[0002] Flange disc is called flange, it is a general term, usually refers to the periphery of a similar disc metal body and opens several fixed holes for connecting other things.

[0003] Through the retrieval, a kind of high accuracy butterfly valve flange disc, (grant announcement number: CN 216078346 U),“Including butterfly valve, the side of butterfly valve is provided with flange disc, the butterfly valve includes filter mechanism, the filter mechanism includes fixed ring block, the side of fixed ring block is fixedly connected with fixed rod, the inner wall of fixed ring block is fixedly connected with ion exchange resin shell, the inner chamber of ion exchange resin shell is filled with filter ball.The utility model discloses a fixed rod, fixed ring block, ion exchange resin shell, acrylic wool shell, filter ball, activated carbon ball are cooperated, water is filtered by ion exchange resin shell, acrylic wool shell, filter ball, activated carbon ball, by rotating fixed rod and driving fixed ring block screw thread to enter into valve body, solve the problem that the accumulation of impurities can directly affect the flow of water, while the filter mechanism of water has certain difficulty to install and disassemble, reaches the effect that avoids the influence of impurity accumulation on flow.

[0004] According to the above related technology, the applicant believes that the flange disc in the prior art is mostly connected by bolts, and after long-term use, the bolts are rusted and loose, the precision of the flange disc connection is reduced, and the sealing may not be tight, which may cause leakage, to solve the above problems, we launch a kind of high accuracy stainless steel flange disc. Utility model content

[0005] The utility model discloses a kind of high accuracy stainless steel flange disc, to solve the flange disc in prior art mostly adopts bolt to connect, after long-term use, bolt rusts and loosens, the precision of flange disc connection is reduced, possibly there is the situation that sealing is not tight, leading to leakage.

[0006] To achieve the above object, the utility model adopts the following technical scheme:

[0007] The utility model provides a high-precision stainless steel flange plate, including the flange plate main part, the outside of flange plate main part is equipped with fastening mechanism, fastening mechanism includes the outer thread sleeve, the outer thread sleeve fixed connection in the outside one side of flange plate main part, the outside screw thread connection of outer thread sleeve has the inner thread ring, the outside of outer thread sleeve is equipped with the connecting ring, rotatingly connected between connecting ring and inner thread ring, the outside of connecting ring is circular array fixed connection with rotating block, the inside rotation of rotating block is connected with L shaped positioning rod.

[0008] Realize the quick fastening and accurate positioning of flange plate, improve the installation efficiency, and avoid the problem that traditional bolt connection is easy to loosen.

[0009] In a preferred scheme, the side of the flange plate main body close to the outer thread sleeve is circumferentially arrayed with fastening grooves, which are used in cooperation with the L-shaped positioning rods.

[0010] Ensure that the flange plate remains stable and centered during installation, preventing deviation, improving sealing and connection reliability, and suitable for high-precision pipeline butt joint.

[0011] In a preferred scheme, the base body of the flange plate main body is made of 2205 stainless steel, and the sealing surface is sprayed with a WC-CoCr coating and then subjected to laser remelting treatment.

[0012] Using a 2205 stainless steel base body and spraying a WC-CoCr coating greatly improves the corrosion resistance and wear resistance of the flange plate, and laser remelting treatment makes the coating and the base body more tightly combined, prolonging the service life, and suitable for harsh environments such as chemical industry and ocean.

[0013] In a preferred scheme, the outer side of the flange plate main body is provided with a composite anti-rust wear-resistant layer, which comprises, from the inside to the outside, an electroplated chromium layer, a thermal sprayed WC-based hard alloy layer, and a PVD ceramic coating.

[0014] The composite anti-rust wear-resistant layer (electroplated chromium layer + WC-based hard alloy layer + PVD ceramic coating) provides multi-layer protection, effectively resisting chemical corrosion and mechanical wear, and ensuring long-term stable operation of the flange plate under high pressure and high wear conditions.

[0015] In a preferred scheme, the outer side of the inner thread ring is symmetrically fixed with rotating plates, and the outer sides of the two rotating plates are fixed with anti-slip rubber sleeves.

[0016] The design of rotating plates and rubber sleeves enhances the convenience and slip resistance of manual operation, making it easier to tighten the inner thread ring, while reducing the risk of scratching the surface of the flange plate with tools.

[0017] In a preferred scheme, the inner part of the flange body is circumferentially arrayed with mounting bolts for mounting.

[0018] The circumferential array of mounting bolts ensures uniform stress distribution of the flange connection with the pipeline or equipment, improves the overall structural strength and sealing performance, and prevents leakage or deformation caused by local stress concentration.

[0019] The high-precision stainless steel flange provided by the utility model has the following advantages:

[0020] Firstly, compared with single bolt connection, the fastening mechanism can make the flanges tightly adhere to each other, form stable connection, and have higher precision, avoid leakage, and have simple structure and strong practicality.

[0021] Secondly, the 2205 stainless steel base body and the WC-CoCr coating layer are adopted to greatly improve the corrosion resistance and wear resistance of the flange, the laser remelting treatment makes the coating and the base body more closely combined, prolongs the service life, and is suitable for harsh environments such as chemical industry and ocean. The composite anti-rust wear-resistant layer (electroplated chromium layer + WC-based hard alloy layer + PVD ceramic coating) provides multi-layer protection, effectively resists chemical corrosion and mechanical wear, and ensures long-term stable operation of the flange under high pressure and high wear conditions. The design of the rotating plate and the rubber sleeve enhances the convenience and slip resistance of manual operation, makes the tightening of the inner thread ring more labor-saving, and reduces the risk of tool scratching the surface of the flange. The circumferential array of mounting bolts ensures uniform stress distribution of the flange connection with the pipeline or equipment, improves the overall structural strength and sealing performance, and prevents leakage or deformation caused by local stress concentration. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 A combined perspective view of the high-precision stainless steel flange is provided.

[0023] Figure 2 A perspective view of the high-precision stainless steel flange is provided.

[0024] Figure 3 A perspective view of the high-precision stainless steel flange is provided.

[0025] Figure 4 A perspective view of the high-precision stainless steel flange is provided.

[0026] Figure 5 A perspective view of the flange body of the high-precision stainless steel flange is provided.

[0027] In the drawing: 1, flange body; 2, outer threaded sleeve; 3, inner threaded ring; 4, connecting ring; 5, rotating block; 6, L-shaped positioning rod; 7, fastening groove; 8, rotating plate; 9, mounting bolt. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and indicated in the drawings can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the claimed present application, but only represents selected embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of the present application.

[0029] The high-precision stainless steel flange disclosed by the utility model is mainly applied to the scene of flange.

[0030] Reference Figure 1 - Figure 5 A high-precision stainless steel flange, comprising a flange body 1, a fastening mechanism is arranged on the outer side of the flange body 1, the fastening mechanism comprises an outer threaded sleeve 2, the outer threaded sleeve 2 is fixedly connected to one side of the outer side of the flange body 1, an inner threaded ring 3 is threadedly connected to the outer side of the outer threaded sleeve 2, a connecting ring 4 is arranged on the outer side of the outer threaded sleeve 2 in a sleeved mode, the connecting ring 4 is rotatably connected with the inner threaded ring 3, a rotating block 5 is fixedly connected to the outer side of the connecting ring 4 in a circumferential array mode, and an L-shaped positioning rod 6 is rotatably connected to the inner side of the rotating block 5.

[0031] In the embodiment: during installation, the flange body 1 is aligned in a staggered mode, a mounting bolt 9 is used for installation and connection, after the connection is completed, an operator flips the L-shaped positioning rod 6, rotates the inner threaded ring 3 to make the inner threaded ring 3 move along the outer threaded sleeve 2, pushes the connecting ring 4 and the L-shaped positioning rod 6 to move towards the fastening groove 7, after the L-shaped positioning rod 6 is clamped into the fastening groove 7, the inner threaded ring 3 is continuously tightened, compared with the single bolt connection, the fastening mechanism can make the flanges closely adhere to each other, form stable connection, has higher precision, avoids leakage, has simple structure and high practicability.

[0032] In the above technical solution, considering that in the prior art, the flange plate is connected by bolts, and after long-term use, the bolts rust and loosen, the precision of the flange plate connection decreases, and the sealing may not be tight, which may cause leakage. In order to solve such problems, the specific operation is as follows:

[0033] Referring to Figure 1 Figure 5 In a preferred embodiment, the base body of the flange plate body 1 is made of 2205 stainless steel, and the sealing surface is sprayed with a WC-CoCr coating and then subjected to laser remelting treatment. The outer side of the flange plate body 1 is provided with a composite anti-rust wear-resistant layer, which comprises, from the inside to the outside, an electroplated chromium layer, a thermal sprayed WC-based hard alloy layer, and a PVD ceramic coating. The outer side of the inner threaded ring 3 is symmetrically fixedly connected with rotating plates 8, and the outer sides of the two rotating plates 8 are fixedly connected with anti-skid rubber sleeves. The inside of the flange plate body 1 is circumferentially and threadedly connected with mounting bolts 9 for mounting.

[0034] In this embodiment, the 2205 stainless steel base body is sprayed with a WC-CoCr coating, which greatly improves the corrosion resistance and wear resistance of the flange plate. Laser remelting treatment makes the coating and the base body more closely combined, prolonging the service life and being suitable for harsh environments such as chemical industry and ocean. The composite anti-rust wear-resistant layer (electroplated chromium layer + WC-based hard alloy layer + PVD ceramic coating) provides multi-layer protection, effectively resisting chemical corrosion and mechanical wear, and ensuring the long-term stable operation of the flange plate under high pressure and high wear conditions. The design of the rotating plates 8 and the rubber sleeves enhances the convenience and anti-skid property of manual operation, making it easier to tighten the inner threaded ring 3, while reducing the risk of scratching the surface of the flange plate with tools. The mounting bolts 9 are arranged in a circumferential array, ensuring that the flange plate and the pipeline or equipment are uniformly stressed, improving the overall structural strength and sealing performance, and preventing leakage or deformation caused by local stress concentration.

[0035] Working principle: during installation, the flange plate body 1 is aligned with the misalignment, the mounting bolts 9 are used for installation and connection, after the connection is completed, the worker flips the L-shaped positioning rod 6, rotates the inner threaded ring 3 to move along the outer threaded sleeve 2, pushes the connecting ring 4 and the L-shaped positioning rod 6 to move towards the fastening groove 7, after the L-shaped positioning rod 6 is clamped into the fastening groove 7, the inner threaded ring 3 is continuously tightened, the flange plate is tightly attached, a stable connection is formed, the composite anti-rust wear-resistant layer protects the surface of the flange plate from corrosion and wear, and the 2205 stainless steel base body and high-precision processing ensure long-term sealing and structural strength.

[0036] ​The above merely is a preferred specific implementation manner of the present utility model, but the protection scope of the present utility model is not limited to this. The substitution can be the substitution of partial structures, devices, method steps, or can be a complete technical scheme. According to the technical scheme of the present utility model and the utility model concept, equivalent substitution or change should be covered in the protection scope of the present utility model.

Claims

1. A high-precision stainless steel flange plate comprising a flange plate body (1), characterized in that: The outer side of the flange body (1) is provided with a fastening mechanism, the fastening mechanism comprises an outer threaded sleeve (2), the outer threaded sleeve (2) is fixedly connected to one side of the outer side of the flange body (1), the outer side of the outer threaded sleeve (2) is threadedly connected with an inner threaded ring (3), the outer side of the outer threaded sleeve (2) is sleeved with a connecting ring (4), the connecting ring (4) is rotatably connected with the inner threaded ring (3), the outer side of the connecting ring (4) is fixedly connected with a rotating block (5) in a circumferential array, and the inner side of the rotating block (5) is rotatably connected with an L-shaped positioning rod (6).

2. A high-precision stainless steel flange plate according to claim 1, characterized in that: The side of the flange body (1) close to the outer threaded sleeve (2) is provided with a fastening groove (7) in a circumferential array, and the fastening groove (7) is used in cooperation with the L-shaped positioning rod (6).

3. The high-precision stainless steel flange plate according to claim 1, characterized in that: The base body of the flange body (1) is made of 2205 stainless steel, and the sealing surface is sprayed with a WC-CoCr coating and then subjected to laser remelting treatment.

4. The high-precision stainless steel flange plate according to claim 1, characterized in that: The outer side of the flange body (1) is provided with a composite anti-rust wear-resistant layer, and the composite anti-rust wear-resistant layer comprises, from inside to outside, an electroplated chromium layer, a thermal sprayed WC-based hard alloy layer and a PVD ceramic coating.

5. The high-precision stainless steel flange plate according to claim 1, characterized in that: The outer side of the inner threaded ring (3) is fixedly connected with a rotating plate (8) in a symmetrical manner, and the outer side of each of the two rotating plates (8) is fixedly connected with an anti-skid rubber sleeve.

6. The high-precision stainless steel flange plate according to claim 1, characterized in that: The inner side of the flange body (1) is threadedly connected with mounting bolts (9) for mounting in a circumferential array.

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